CVE•Published 2018-08-21•Modified 2026-10-08•0 articles on news•5 live references•NVD data

CVE-2018-7166Nodejs · Node.js

Vulnerability data via NVD (ingested)

CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS percentile
86
Exploit Prediction Scoring System · top 14% of all CVEs
Description

In all versions of Node.js 10 prior to 10.9.0, an argument processing flaw can cause `Buffer.alloc()` to return uninitialized memory. This method is intended to be safe and only return initialized, or cleared, memory. The third argument specifying `encoding` can be passed as a number, this is misinterpreted by `Buffer's` internal "fill" method as the `start` to a fill operation. This flaw may be abused where `Buffer.alloc()` arguments are derived from user input to return uncleared memory blocks that may contain sensitive information.

Timeline
Published 2018-08-21
Modified 2026-10-08

External references

Search for exposed instances

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More intel sources (5)

Known PoCs on GitHub (2)

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